Did you just receive the following error? “Error 1321: The installer has insufficient privileges to modify the file.” Well, this is a common error and usually arises when you do not have permission to access ay specific company file. Just updating the privileges and rights for access should in most cases fix QuickBooks error code 1321. But there may be other issues as well behind this error and they may require a different solution. We know that such errors can be annoying but don’t worry, it’s fixable.